Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Kian Nassiri, DO

Individual provider Brain Injury Medicine (Physical Medicine & Rehabilitation) Physician · NPI 1962965756

Kian Nassiri, DO is registered under Physical Medicine and Rehabilitation in Chicago, Illinois. Graduated from Arizona College of Osteopathic Medicine Mid Western University in 2019, 7 years ago. Practices with Medical Services Ric, a 94-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
7
Trained at
Arizona College of Osteopathic Medicine Mid Western University
Licensed in
IL
In the registry since
2019
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

355 E Erie St
Chicago, IL 60611
Phone: (312) 238-1000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 251 E Huron St, Chicago, IL 60611-2908 — (312) 926-2000

Specialties & licences

Brain Injury Medicine (Physical Medicine & Rehabilitation) Physician (primary) Taxonomy 2081P0301X · Licence 036.170380 (IL)
Physical Medicine & Rehabilitation Physician Taxonomy 208100000X · Licence 125075361 (IL)

Record details

NPI number1962965756
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 9, 2019
Last updated in NPPESJuly 17, 2026
Certification dateJuly 17, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICAL MEDICINE AND REHABILITATION
Medical schoolARIZONA COLLEGE OF OSTEOPATHIC MEDICINE MID WESTERN UNIVERSITY
Graduated 2019 (7 years in practice)
Group practice Medical Services Ric — 94 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients23
Services billed 226 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Medical Services Ric

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 94 clinicians in the practice; 12 are shown here.

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